摘要
There are 22 times as many people living with HIV in the population of drug users as in the general population.This is because the injection and sexually risky behaviors prevalent in this population.Having multiple sexual partners and maintaining sexual networks with people who inject drugs (PWIDs),can increase the risk of contracting a sexually transmitted infection^([1]).More than 65%of all HIVrelated cases in Iran can be traced back to people who inject drugs (PWID),and the number is estimated to be between 200,000 and 230,000 in Iran overall.Effective prevention,resources allocation and monitoring require an accurate estimate of the population of people who use illicit drugs^([2]).
